I definitely work with the DOM, but even still I'm not sure if the ways I work with it would set off your alarms or not :D
(Luckily) I don't think jQuery has a lot of traction anymore—even the creator of jQuery has put it down in favor of using React for a few years now—so if anything, I think a more relevant question might be something like:
"Why do developers insist on trying to innovate on top of the DOM we already have with things like virtual DOM?"
Surely some of these frameworks and libraries are reimplementing things we already have, (and sometimes much more poorly), but at the same time I think some of the ways people are experimenting with building can lead to new ideas that will someday get built into the DOM like how some of the handiest helpers from jQuery, and syntax ideas from CoffeeScript have inspired JavaScript features that came later.
While I definitely don't go out of my way to use jQuery or CoffeeScript, I can't deny their influence on the native JS features I learn and use today.
While you definitely won't go out of your way to use things like Vue or React today, I hope you won't deny the impact they will have on the native DOM features of the future!
These new frameworks allow you to create projects faster without having to reach into the DOM manually. The declarative nature of them allow you to create things without having to manually rig stuff up. To me that is an advantage because it speed things up development time, but there is no right or wrong answer. Whatever works for you.